Misa stops attempting to pry Tony away, letting go of him to stare at the amulet in awe. How did the slime do that? The shape, the size, the consistency; everything changed in an instant. She looks to Tony, and then back at the object. Obviously it means something to him.

"A necklace...? Is this your Other's?"

She is just going to quietly pull her phone back out and take a picture of it.